2017 TOYOTA TACOMA differential

2544-5. Using the driving support systems
Manual transmission
4WD models: Before using the rear differential lock system.
Stop the vehicle or reduce your speed to less than 2 mph (3 km/h).
Depress the clutch pedal and turn the front-wheel drive control
switch in the “4L” position to see if this is sufficient. If this has no
effect, additionally use the rear differential lock system.
Be sure to stop the wheels.
Depress the clutch pedal.
Press the rear differential lock switch.
After the rear differential is locked, the indicator will come on.
Slowly release the clutch pedal.
Unlock the rear differential as soon as the vehicle moves.
To unlock the rear differential, press the switch again.
■ Locking the rear differential
●When the rear differential is locked, VSC is automatically turned off.
(The rear differential lock and VSC off indicators come on.)
● The following systems do not operate when the rear differential is locked. It
is normal operation for the ABS warning light and VSC off indicator to be on
at this time.
•ABS
• Multi Terrain ABS (if equipped)
• Brake assist system
•VSC
•TRAC
• Hill-start assist control (if equipped on 4WD models)
■ The rear differential lock is disengaged when
●Vehicles without a smart key system: When the engine switch is turned to
the “LOCK” position
● Vehicles with a smart key system: When the engine switch is turned off
● 4WD models only: Turn the front-wheel drive control switch to “2WD” or “4H”
position.
Never forget to turn off the switch after using this feature.
■ After unlocking the rear differential
Vehicles without a smart key system
To check that the indicator goes off, turn the engine switch to the “ON” posi-
tion, but do not start the engine.
Vehicles with a smart key system
To check that the indicator goes off, turn the engine switch to IGNITION ON
mode, but do not start the engine.
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2
3
4
5

2554-5. Using the driving support systems
4
Driving
WARNING
■To avoid an accident
● Do not use the rear differential lock system except when wheel spinning
occurs in a ditch or on a slippery or ragged surface. Large steering effort
and careful cornering control will be required.
● Do not lock the rear differential until the wheels have stopped spinning.
Otherwise, the vehicle may move in an unexpected direction when the dif-
ferential lock is engaged, resulting in an accident. This may also lead to
possible damage to differential lock component parts.
● Do not drive over 5 mph (8 km/h) when the differential is locked.
● Do not keep driving with the rear differential lock switch on.

2574-5. Using the driving support systems
4
Driving
■When the rear differential is locked (vehicles with the rear differential
lock system)
The active traction control system is activated only when the vehicle speed is
less than 3 mph (6 km/h).
■ Sounds and vibrations caused by the active traction control system
● A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indicate
that a malfunction has occurred in the system.
● Vibrations may be felt through the vehicle body and steering. It may occur
when the system is operating.
■ If the brake system overheats
The system will cease operation, a buzzer will sound to alert the driver. Stop
the vehicle in a safe place. (There is no problem with continuing normal driv-
ing.)
The system will be automatically restored after a short time.
WARNING
■The active traction control system m ay not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the active traction control system is operat\
ing.
Do not drive the vehicle in conditions where stability and power may be lost.

2604-5. Using the driving support systems
Operate the Multi-terrain Select
mode selector dial during Multi-
terrain Select control to select a
mode.
■The Multi-terrain Select can be operated when
●The four-wheel drive control switch is in “4L” position.
● The Crawl Control is off.
■ When using the Multi-terrain Select
The VSC system cannot be switched on or off.
A message will be shown on the multi-information display stating that this
function cannot be switched using the VSC off switch.
■ When it is difficult to generate traction
“MUD & SAND” mode provides the largest amount of tire slippage, followed
by “LOOSE ROCK”, “MOGUL”, “ROCK & DIRT” and “ROCK” mode.
If the current tires slip is too large, driveability can be improved by selecting a
mode with a smaller slip amount. Conversely, selecting a mode with a larger
slip can improve driveability, if the current tire slip is too small.
■ When the vehicle is stuck
Switching the transfer and differentials
For the operation of following function, refer to the following pages.
●Four-wheel drive system ( →P. 247)
● Rear differential lock ( →P. 253)
Selecting modes

2804-6. Driving tips
NOTICE
■To prevent the water damage
Take all necessary safety measures to ensure that water damage to the
engine or other components does not occur.
● Water entering the engine air intake will cause severe engine damage.
● Water entering the automatic transmission will cause deterioration in shift
quality, locking up of your transmission accompanied by vibration, and ulti-
mately damage.
● Water can wash the grease from wheel bearings, causing rusting and pre-
mature failure, and may also enter the differentials, transmission and
transfer case, reducing the gear oil’s lubricating qualities.
■ When you drive through water
If driving through water, such as when crossing shallow streams, first check
the depth of the water and the bottom of the river bed for firmness. Drive
slowly and avoid deep water.
■ Inspection after off-road driving
● Sand and mud that has accumulated in brake drums and around brake
discs may affect braking efficiency and may damage brake system compo-
nents.
● Always perform a maintenance inspection after each day of off-road driv-
ing that has taken you through rough terrain, sand, mud, or water. For
scheduled maintenance information, refer to the “Scheduled Maintenance
Guide” or “Owner’s Manual Supplement”.

5168-2. Steps to take in an emergency
(Flashes rapidly)
Four-wheel drive indicator light*2, 4
Indicates that the differential oil temperature is too high
when the light flashes rapidly and a buzzer sound.
→ Immediately stop the vehicle in a safe place, turn the
front-wheel drive control sw itch to “2WD”, and wait
until the warning light goes off.
Indicates a malfunction in the four-wheel drive system
when the light flashes rapidly and a buzzer does not
sound.
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes rapidly)
Rear differential lock indicator light*4, 5
Indicates a malfunction in the rear differential lock system
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes)
Low speed four-wheel drive indicator light*4, 6
Indicates a malfunction in the four-wheel drive system
→ Have the vehicle inspected by your Toyota dealer
immediately.
Open door warning light*2
Indicates that one or more of the doors is not fully closed.
→ Check that all the doors are closed.
Low fuel level warning light
Indicates remaining fuel is approximately 3.2 gal. (12.0 L,
2.6 Imp.gal.) or less
→ Refuel the vehicle.
Seat belt reminder light (warning buzzer)*7
Warns the driver and/or front passenger to fasten their
seat belts
→ Fasten the seat belt.
If the front passenger’s seat is occupied, the front
passenger’s seat belt also needs to be fastened to
make the warning light (war ning buzzer) turn off.
(U.S.A.)
(Canada)Parking brake indicator (warning buzzer)*8
Warns the driver to release parking brake.
→ Release the parking brake.
Warning lightWarning light/Details/Actions

5288-2. Steps to take in an emergency
(4WD models only)
Indicates that the front differential oil temperature
is too high.
→Drop your speed or stop the vehicle until
the message and light go off. If the mes-
sage and light do not go off, contact your
Toyota dealer.
(4WD models only)
Indicates that the front differential oil temperature
is too high.
→ Turn the front-wheel dr ive control switch to
“2WD” ( →P. 247) and drop your speed or
stop the vehicle until the message and light
go off. If the message and light do not go
off, contact your Toyota dealer.
(If equipped)
Indicates that the Crawl Control is canceled while
in use. A buzzer also sounds.
→ Use the Crawl Control under the proper
operating conditions. ( →P. 262)
Indicates that one or more of the doors is not fully
closed.
The system also indicates which doors are not
fully closed.
If the vehicle reaches a speed of 3 mph
(5 km/h), flashes and a buzzer
sounds to indicate that the door(s) are not
yet fully closed.
→ Make sure that all the doors are closed.
Warning messageDetails/Actions
(Flashes)
(Flashes)

5769-1. Specifications
*1: Your Toyota vehicle is filled with “Toyota Genuine Differential Gear Oil” atthe factory. Use Toyota approved “Toyota Genuine Differential Gear Oil” or
an equivalent oil of matching quality to satisfy the above specification.
Please contact your Toyota dealer for further details.
*2: Except for GRN330L-PRTSHA, GRN330L-PRTLHA, GRN310L-PRTSHA
and GRN310L-PRTLHA models
*6 without rear differential lock system
*3: For GRN330L-PRTSHA, GRN330L -PRTLHA, GRN310L-PRTSHA and
GRN310L-PRTLHA models
*6 without rear differential lock system
*4: Except for GRN330L-PRTSHA, GRN330L-PRTLHA, GRN310L-PRTSHA
and GRN310L-PRTLHA models
*6 with rear differential lock system
*5: For GRN330L-PRTSHA and GRN310L-PRTSHA models*6 with rear differ-
ential lock system
*6: The model code is indicated on the Certification Label. ( →P. 571)
Electrical system
Battery
Open voltage at 68°F
(20° C):12.6 ⎯ 12.8 V Fully charged
12.2
⎯ 12.4 V Half charged
11 . 8
⎯ 12.0 V Discharged
(Voltage is checked 20 minutes after the engine
and all lights are turned off.)
Charging rates5 A max.
Differential
Oil capacity
(Reference)
Front (4WD models) 1.6 qt. (1.5 L, 1.3 Imp.qt.)
Rear
Vehicles with an automatic trans-
mission
3.1 qt. (2.9 L, 2.6 Imp.qt.)
*2
3.22 qt. (3.05 L, 2.68 Imp.qt.)*3
4.0 qt. (3.8 L, 3.3 Imp.qt.)*4
4.2 qt. (4.0 L, 3.5 Imp.qt.)*5
Vehicles with a manual transmis-
sion
4.0 qt. (3.8 L, 3.3 Imp.qt.)
Oil type and viscosity*1Toyota Genuine Differential Gear Oil
LT 75W-85 GL-5 or equivalent